./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:15:35,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:15:36,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:15:36,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:15:36,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:15:36,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:15:36,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:15:36,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:15:36,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:15:36,069 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:15:36,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:15:36,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:15:36,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:15:36,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:15:36,073 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:15:36,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:15:36,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:15:36,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:15:36,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:15:36,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:15:36,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:15:36,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:15:36,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:15:36,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:15:36,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:15:36,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:15:36,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:15:36,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:15:36,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:15:36,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:15:36,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:15:36,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:15:36,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:15:36,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:15:36,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:15:36,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:15:36,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:15:36,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:15:36,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:15:36,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:15:36,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:15:36,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:15:36,083 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d [2024-11-20 06:15:36,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:15:36,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:15:36,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:15:36,353 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:15:36,353 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:15:36,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2024-11-20 06:15:37,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:15:37,956 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:15:37,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2024-11-20 06:15:37,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d73b48bc/aede0be546644ebdaa75f3c5c81f67f7/FLAGb7c5bc8eb [2024-11-20 06:15:37,981 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d73b48bc/aede0be546644ebdaa75f3c5c81f67f7 [2024-11-20 06:15:37,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:15:37,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:15:37,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:15:37,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:15:37,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:15:37,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:15:37" (1/1) ... [2024-11-20 06:15:37,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29becd58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:37, skipping insertion in model container [2024-11-20 06:15:37,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:15:37" (1/1) ... [2024-11-20 06:15:38,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:15:38,235 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2024-11-20 06:15:38,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:15:38,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:15:38,413 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2024-11-20 06:15:38,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:15:38,476 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:15:38,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38 WrapperNode [2024-11-20 06:15:38,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:15:38,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:15:38,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:15:38,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:15:38,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,547 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 217 [2024-11-20 06:15:38,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:15:38,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:15:38,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:15:38,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:15:38,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,589 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 06:15:38,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:15:38,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:15:38,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:15:38,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:15:38,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (1/1) ... [2024-11-20 06:15:38,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:15:38,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:15:38,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 06:15:38,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 06:15:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:15:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:15:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:15:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:15:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:15:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:15:38,842 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:15:38,847 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:15:39,331 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-20 06:15:39,331 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:15:39,349 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:15:39,350 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:15:39,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:39 BoogieIcfgContainer [2024-11-20 06:15:39,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:15:39,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:15:39,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:15:39,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:15:39,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:15:37" (1/3) ... [2024-11-20 06:15:39,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c634318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:15:39, skipping insertion in model container [2024-11-20 06:15:39,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:38" (2/3) ... [2024-11-20 06:15:39,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c634318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:15:39, skipping insertion in model container [2024-11-20 06:15:39,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:39" (3/3) ... [2024-11-20 06:15:39,360 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-63.i [2024-11-20 06:15:39,378 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:15:39,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:15:39,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:15:39,452 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7cbbb4bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:15:39,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:15:39,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 68 states have internal predecessors, (99), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 06:15:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:15:39,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:15:39,489 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:15:39,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:15:39,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:15:39,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1384575058, now seen corresponding path program 1 times [2024-11-20 06:15:39,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:15:39,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137672522] [2024-11-20 06:15:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:15:39,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:15:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:15:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:15:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:15:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:15:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:15:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:15:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:15:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:15:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:15:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:15:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:15:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:15:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:15:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:15:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:15:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:15:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:15:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:15:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:15:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:15:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:15:39,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:15:39,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137672522] [2024-11-20 06:15:39,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137672522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:15:39,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:15:39,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:15:39,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647596740] [2024-11-20 06:15:39,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:15:39,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:15:39,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:15:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:15:40,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:15:40,028 INFO L87 Difference]: Start difference. First operand has 90 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 68 states have internal predecessors, (99), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 06:15:40,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:15:40,063 INFO L93 Difference]: Finished difference Result 175 states and 293 transitions. [2024-11-20 06:15:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:15:40,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 143 [2024-11-20 06:15:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:15:40,075 INFO L225 Difference]: With dead ends: 175 [2024-11-20 06:15:40,075 INFO L226 Difference]: Without dead ends: 84 [2024-11-20 06:15:40,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:15:40,082 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 06:15:40,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:15:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-20 06:15:40,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-20 06:15:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 62 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 06:15:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 126 transitions. [2024-11-20 06:15:40,141 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 126 transitions. Word has length 143 [2024-11-20 06:15:40,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:15:40,142 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 126 transitions. [2024-11-20 06:15:40,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 06:15:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 126 transitions. [2024-11-20 06:15:40,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:15:40,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:15:40,147 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:15:40,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:15:40,148 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:15:40,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:15:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1680373646, now seen corresponding path program 1 times [2024-11-20 06:15:40,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:15:40,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660296004] [2024-11-20 06:15:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:15:40,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:15:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:15:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:15:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:15:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:15:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:15:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:15:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:15:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:15:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:15:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:15:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:15:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:15:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:15:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:15:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:15:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:15:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:15:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:15:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:15:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:15:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:15:40,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:15:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660296004] [2024-11-20 06:15:40,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660296004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:15:40,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:15:40,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 06:15:40,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372157120] [2024-11-20 06:15:40,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:15:40,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 06:15:40,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:15:40,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 06:15:40,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 06:15:40,477 INFO L87 Difference]: Start difference. First operand 84 states and 126 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:15:40,516 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2024-11-20 06:15:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 06:15:40,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:15:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:15:40,521 INFO L225 Difference]: With dead ends: 166 [2024-11-20 06:15:40,522 INFO L226 Difference]: Without dead ends: 85 [2024-11-20 06:15:40,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 06:15:40,524 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 06:15:40,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:15:40,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-20 06:15:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-20 06:15:40,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 06:15:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 127 transitions. [2024-11-20 06:15:40,545 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 127 transitions. Word has length 143 [2024-11-20 06:15:40,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:15:40,546 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 127 transitions. [2024-11-20 06:15:40,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 127 transitions. [2024-11-20 06:15:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:15:40,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:15:40,551 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:15:40,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:15:40,551 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:15:40,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:15:40,552 INFO L85 PathProgramCache]: Analyzing trace with hash -849713454, now seen corresponding path program 1 times [2024-11-20 06:15:40,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:15:40,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886620511] [2024-11-20 06:15:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:15:40,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:15:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:40,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:15:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:15:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:15:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:15:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:15:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:15:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:15:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:15:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:15:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:15:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:15:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:15:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:15:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:15:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:15:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:15:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:15:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:15:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:15:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:15:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:15:41,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:15:41,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886620511] [2024-11-20 06:15:41,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886620511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:15:41,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:15:41,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:15:41,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080449157] [2024-11-20 06:15:41,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:15:41,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:15:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:15:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:15:41,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:15:41,124 INFO L87 Difference]: Start difference. First operand 85 states and 127 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:41,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:15:41,318 INFO L93 Difference]: Finished difference Result 250 states and 376 transitions. [2024-11-20 06:15:41,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 06:15:41,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:15:41,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:15:41,321 INFO L225 Difference]: With dead ends: 250 [2024-11-20 06:15:41,322 INFO L226 Difference]: Without dead ends: 168 [2024-11-20 06:15:41,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:15:41,325 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 93 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:15:41,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 353 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:15:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-20 06:15:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 132. [2024-11-20 06:15:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 06:15:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 199 transitions. [2024-11-20 06:15:41,366 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 199 transitions. Word has length 143 [2024-11-20 06:15:41,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:15:41,367 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 199 transitions. [2024-11-20 06:15:41,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 199 transitions. [2024-11-20 06:15:41,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:15:41,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:15:41,372 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:15:41,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 06:15:41,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:15:41,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:15:41,373 INFO L85 PathProgramCache]: Analyzing trace with hash -983726960, now seen corresponding path program 1 times [2024-11-20 06:15:41,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:15:41,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983876508] [2024-11-20 06:15:41,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:15:41,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:15:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:15:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:15:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:15:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:15:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:15:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:15:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:15:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:15:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:15:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:15:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:15:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:15:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:15:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:15:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:15:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:15:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:15:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:15:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:15:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:15:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:15:41,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:15:41,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983876508] [2024-11-20 06:15:41,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983876508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:15:41,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:15:41,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:15:41,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317725596] [2024-11-20 06:15:41,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:15:41,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:15:41,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:15:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:15:41,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:15:41,848 INFO L87 Difference]: Start difference. First operand 132 states and 199 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:42,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:15:42,029 INFO L93 Difference]: Finished difference Result 317 states and 471 transitions. [2024-11-20 06:15:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 06:15:42,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:15:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:15:42,034 INFO L225 Difference]: With dead ends: 317 [2024-11-20 06:15:42,034 INFO L226 Difference]: Without dead ends: 235 [2024-11-20 06:15:42,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:15:42,039 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 191 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 06:15:42,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 292 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 06:15:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-20 06:15:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 186. [2024-11-20 06:15:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 134 states have (on average 1.3582089552238805) internal successors, (182), 135 states have internal predecessors, (182), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:15:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 278 transitions. [2024-11-20 06:15:42,074 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 278 transitions. Word has length 143 [2024-11-20 06:15:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:15:42,075 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 278 transitions. [2024-11-20 06:15:42,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 278 transitions. [2024-11-20 06:15:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:15:42,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:15:42,082 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:15:42,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 06:15:42,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:15:42,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:15:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1348004724, now seen corresponding path program 1 times [2024-11-20 06:15:42,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:15:42,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385176833] [2024-11-20 06:15:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:15:42,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:15:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:15:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:15:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:15:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:15:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:15:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:15:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:15:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:15:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:15:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:15:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:15:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:15:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:15:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:15:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:15:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:15:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:15:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:15:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:15:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:15:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:15:48,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:15:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385176833] [2024-11-20 06:15:48,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385176833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:15:48,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:15:48,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 06:15:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050379598] [2024-11-20 06:15:48,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:15:48,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 06:15:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:15:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 06:15:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-20 06:15:48,673 INFO L87 Difference]: Start difference. First operand 186 states and 278 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:49,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:15:49,336 INFO L93 Difference]: Finished difference Result 522 states and 768 transitions. [2024-11-20 06:15:49,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 06:15:49,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:15:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:15:49,341 INFO L225 Difference]: With dead ends: 522 [2024-11-20 06:15:49,341 INFO L226 Difference]: Without dead ends: 387 [2024-11-20 06:15:49,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-20 06:15:49,343 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 207 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 06:15:49,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 446 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 06:15:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-20 06:15:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 227. [2024-11-20 06:15:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 175 states have (on average 1.3885714285714286) internal successors, (243), 176 states have internal predecessors, (243), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:15:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 339 transitions. [2024-11-20 06:15:49,364 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 339 transitions. Word has length 143 [2024-11-20 06:15:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:15:49,365 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 339 transitions. [2024-11-20 06:15:49,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:15:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 339 transitions. [2024-11-20 06:15:49,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:15:49,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:15:49,367 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:15:49,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 06:15:49,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:15:49,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:15:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2137615946, now seen corresponding path program 1 times [2024-11-20 06:15:49,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:15:49,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935906089] [2024-11-20 06:15:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:15:49,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:15:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:15:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:15:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:15:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:15:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:15:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:15:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:15:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:15:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:15:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:15:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:15:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:15:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:15:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:15:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:15:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:15:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:15:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:15:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:15:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:15:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:15:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:15:58,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:15:58,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935906089] [2024-11-20 06:15:58,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935906089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:15:58,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:15:58,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 06:15:58,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626503425] [2024-11-20 06:15:58,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:15:58,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 06:15:58,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:15:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 06:15:58,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-20 06:15:58,895 INFO L87 Difference]: Start difference. First operand 227 states and 339 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:01,612 INFO L93 Difference]: Finished difference Result 816 states and 1186 transitions. [2024-11-20 06:16:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 06:16:01,613 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:16:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:01,618 INFO L225 Difference]: With dead ends: 816 [2024-11-20 06:16:01,618 INFO L226 Difference]: Without dead ends: 641 [2024-11-20 06:16:01,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2024-11-20 06:16:01,620 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 838 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:01,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 834 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 06:16:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-20 06:16:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 273. [2024-11-20 06:16:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 221 states have (on average 1.411764705882353) internal successors, (312), 222 states have internal predecessors, (312), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:16:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 408 transitions. [2024-11-20 06:16:01,647 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 408 transitions. Word has length 143 [2024-11-20 06:16:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:01,649 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 408 transitions. [2024-11-20 06:16:01,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 408 transitions. [2024-11-20 06:16:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:16:01,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:01,651 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:01,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 06:16:01,652 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:01,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:01,652 INFO L85 PathProgramCache]: Analyzing trace with hash -561025134, now seen corresponding path program 1 times [2024-11-20 06:16:01,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:01,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010277370] [2024-11-20 06:16:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:01,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:01,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:01,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010277370] [2024-11-20 06:16:01,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010277370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:01,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:01,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 06:16:01,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795562183] [2024-11-20 06:16:01,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:01,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 06:16:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 06:16:01,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:16:01,957 INFO L87 Difference]: Start difference. First operand 273 states and 408 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:02,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:02,136 INFO L93 Difference]: Finished difference Result 519 states and 771 transitions. [2024-11-20 06:16:02,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:16:02,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:16:02,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:02,139 INFO L225 Difference]: With dead ends: 519 [2024-11-20 06:16:02,139 INFO L226 Difference]: Without dead ends: 304 [2024-11-20 06:16:02,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:16:02,140 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 142 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:02,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 457 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:16:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-20 06:16:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 266. [2024-11-20 06:16:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 214 states have (on average 1.397196261682243) internal successors, (299), 215 states have internal predecessors, (299), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:16:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 395 transitions. [2024-11-20 06:16:02,172 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 395 transitions. Word has length 143 [2024-11-20 06:16:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:02,173 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 395 transitions. [2024-11-20 06:16:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 395 transitions. [2024-11-20 06:16:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 06:16:02,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:02,175 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:02,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 06:16:02,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:02,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:02,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1370371760, now seen corresponding path program 1 times [2024-11-20 06:16:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782061754] [2024-11-20 06:16:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:07,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:07,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782061754] [2024-11-20 06:16:07,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782061754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:07,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:07,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 06:16:07,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736723980] [2024-11-20 06:16:07,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:07,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 06:16:07,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:07,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 06:16:07,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-20 06:16:07,125 INFO L87 Difference]: Start difference. First operand 266 states and 395 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:08,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:08,743 INFO L93 Difference]: Finished difference Result 818 states and 1192 transitions. [2024-11-20 06:16:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 06:16:08,744 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 06:16:08,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:08,747 INFO L225 Difference]: With dead ends: 818 [2024-11-20 06:16:08,747 INFO L226 Difference]: Without dead ends: 622 [2024-11-20 06:16:08,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-20 06:16:08,749 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 564 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:08,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 719 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 06:16:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-20 06:16:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 311. [2024-11-20 06:16:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 259 states have (on average 1.4054054054054055) internal successors, (364), 260 states have internal predecessors, (364), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:16:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 460 transitions. [2024-11-20 06:16:08,774 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 460 transitions. Word has length 143 [2024-11-20 06:16:08,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:08,775 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 460 transitions. [2024-11-20 06:16:08,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 460 transitions. [2024-11-20 06:16:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 06:16:08,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:08,777 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:08,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 06:16:08,778 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:08,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1851192500, now seen corresponding path program 1 times [2024-11-20 06:16:08,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:08,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823965133] [2024-11-20 06:16:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:08,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:14,755 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:14,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:14,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823965133] [2024-11-20 06:16:14,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823965133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:14,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:14,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 06:16:14,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71429852] [2024-11-20 06:16:14,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:14,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 06:16:14,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:14,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 06:16:14,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-20 06:16:14,758 INFO L87 Difference]: Start difference. First operand 311 states and 460 transitions. Second operand has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:16,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:16,398 INFO L93 Difference]: Finished difference Result 800 states and 1171 transitions. [2024-11-20 06:16:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 06:16:16,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 06:16:16,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:16,406 INFO L225 Difference]: With dead ends: 800 [2024-11-20 06:16:16,406 INFO L226 Difference]: Without dead ends: 583 [2024-11-20 06:16:16,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2024-11-20 06:16:16,408 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 674 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:16,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 826 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 06:16:16,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-20 06:16:16,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 321. [2024-11-20 06:16:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 269 states have (on average 1.420074349442379) internal successors, (382), 270 states have internal predecessors, (382), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:16:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 478 transitions. [2024-11-20 06:16:16,440 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 478 transitions. Word has length 144 [2024-11-20 06:16:16,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:16,440 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 478 transitions. [2024-11-20 06:16:16,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:16,441 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 478 transitions. [2024-11-20 06:16:16,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 06:16:16,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:16,442 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:16,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 06:16:16,444 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:16,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:16,445 INFO L85 PathProgramCache]: Analyzing trace with hash -785454913, now seen corresponding path program 1 times [2024-11-20 06:16:16,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:16,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025912549] [2024-11-20 06:16:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:16,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:16,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:16,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025912549] [2024-11-20 06:16:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025912549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:16,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:16,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:16:16,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248077628] [2024-11-20 06:16:16,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:16,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:16:16,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:16,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:16:16,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:16:16,588 INFO L87 Difference]: Start difference. First operand 321 states and 478 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:16,651 INFO L93 Difference]: Finished difference Result 697 states and 1028 transitions. [2024-11-20 06:16:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 06:16:16,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 06:16:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:16,654 INFO L225 Difference]: With dead ends: 697 [2024-11-20 06:16:16,654 INFO L226 Difference]: Without dead ends: 475 [2024-11-20 06:16:16,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:16:16,656 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:16,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 229 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:16:16,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-20 06:16:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 471. [2024-11-20 06:16:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 404 states have (on average 1.396039603960396) internal successors, (564), 407 states have internal predecessors, (564), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 06:16:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 684 transitions. [2024-11-20 06:16:16,685 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 684 transitions. Word has length 144 [2024-11-20 06:16:16,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:16,686 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 684 transitions. [2024-11-20 06:16:16,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:16,686 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 684 transitions. [2024-11-20 06:16:16,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 06:16:16,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:16,688 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:16,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 06:16:16,688 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:16,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1449621624, now seen corresponding path program 1 times [2024-11-20 06:16:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143675413] [2024-11-20 06:16:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:20,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:20,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143675413] [2024-11-20 06:16:20,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143675413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:20,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:20,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 06:16:20,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587679948] [2024-11-20 06:16:20,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:20,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 06:16:20,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:20,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 06:16:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:16:20,806 INFO L87 Difference]: Start difference. First operand 471 states and 684 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:22,184 INFO L93 Difference]: Finished difference Result 1291 states and 1868 transitions. [2024-11-20 06:16:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 06:16:22,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 06:16:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:22,192 INFO L225 Difference]: With dead ends: 1291 [2024-11-20 06:16:22,192 INFO L226 Difference]: Without dead ends: 954 [2024-11-20 06:16:22,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-20 06:16:22,194 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 460 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:22,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 588 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 06:16:22,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-20 06:16:22,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 506. [2024-11-20 06:16:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 439 states have (on average 1.4031890660592254) internal successors, (616), 442 states have internal predecessors, (616), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 06:16:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 736 transitions. [2024-11-20 06:16:22,229 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 736 transitions. Word has length 144 [2024-11-20 06:16:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:22,229 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 736 transitions. [2024-11-20 06:16:22,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 736 transitions. [2024-11-20 06:16:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 06:16:22,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:22,233 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:22,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 06:16:22,233 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:22,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:22,234 INFO L85 PathProgramCache]: Analyzing trace with hash 958425944, now seen corresponding path program 1 times [2024-11-20 06:16:22,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:22,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434508656] [2024-11-20 06:16:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:22,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:25,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:25,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434508656] [2024-11-20 06:16:25,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434508656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:25,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:25,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 06:16:25,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145674411] [2024-11-20 06:16:25,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:25,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 06:16:25,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:25,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 06:16:25,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 06:16:25,722 INFO L87 Difference]: Start difference. First operand 506 states and 736 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:27,193 INFO L93 Difference]: Finished difference Result 1352 states and 1966 transitions. [2024-11-20 06:16:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 06:16:27,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 06:16:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:27,199 INFO L225 Difference]: With dead ends: 1352 [2024-11-20 06:16:27,199 INFO L226 Difference]: Without dead ends: 925 [2024-11-20 06:16:27,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-20 06:16:27,201 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 509 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:27,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 794 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 06:16:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-20 06:16:27,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 700. [2024-11-20 06:16:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 632 states have (on average 1.4382911392405062) internal successors, (909), 635 states have internal predecessors, (909), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 06:16:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1029 transitions. [2024-11-20 06:16:27,244 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1029 transitions. Word has length 144 [2024-11-20 06:16:27,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:27,245 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1029 transitions. [2024-11-20 06:16:27,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1029 transitions. [2024-11-20 06:16:27,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 06:16:27,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:27,248 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:27,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 06:16:27,248 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:27,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:27,248 INFO L85 PathProgramCache]: Analyzing trace with hash 149079318, now seen corresponding path program 1 times [2024-11-20 06:16:27,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:27,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919523121] [2024-11-20 06:16:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:27,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:28,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919523121] [2024-11-20 06:16:28,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919523121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:28,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:28,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 06:16:28,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101166863] [2024-11-20 06:16:28,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:28,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 06:16:28,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:28,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 06:16:28,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:16:28,341 INFO L87 Difference]: Start difference. First operand 700 states and 1029 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:29,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:29,468 INFO L93 Difference]: Finished difference Result 1419 states and 2031 transitions. [2024-11-20 06:16:29,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 06:16:29,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 06:16:29,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:29,473 INFO L225 Difference]: With dead ends: 1419 [2024-11-20 06:16:29,473 INFO L226 Difference]: Without dead ends: 1035 [2024-11-20 06:16:29,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2024-11-20 06:16:29,475 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 420 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:29,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1053 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 06:16:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-20 06:16:29,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 835. [2024-11-20 06:16:29,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 761 states have (on average 1.4402102496714848) internal successors, (1096), 766 states have internal predecessors, (1096), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 06:16:29,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1224 transitions. [2024-11-20 06:16:29,524 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1224 transitions. Word has length 144 [2024-11-20 06:16:29,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:29,524 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1224 transitions. [2024-11-20 06:16:29,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1224 transitions. [2024-11-20 06:16:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 06:16:29,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:29,529 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:29,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 06:16:29,529 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:29,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1381127770, now seen corresponding path program 1 times [2024-11-20 06:16:29,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:29,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742311557] [2024-11-20 06:16:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:16:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:16:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:16:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:16:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:16:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:16:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:16:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:16:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:16:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:16:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:16:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:16:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:16:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:16:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:16:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:16:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 06:16:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 06:16:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 06:16:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 06:16:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:16:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 06:16:29,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:16:29,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742311557] [2024-11-20 06:16:29,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742311557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:16:29,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:16:29,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 06:16:29,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858404620] [2024-11-20 06:16:29,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:16:29,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 06:16:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:16:29,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 06:16:29,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:16:29,840 INFO L87 Difference]: Start difference. First operand 835 states and 1224 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:16:30,043 INFO L93 Difference]: Finished difference Result 1655 states and 2416 transitions. [2024-11-20 06:16:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:16:30,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 06:16:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:16:30,051 INFO L225 Difference]: With dead ends: 1655 [2024-11-20 06:16:30,053 INFO L226 Difference]: Without dead ends: 1237 [2024-11-20 06:16:30,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:16:30,057 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 216 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:16:30,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 508 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:16:30,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2024-11-20 06:16:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 879. [2024-11-20 06:16:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 805 states have (on average 1.439751552795031) internal successors, (1159), 810 states have internal predecessors, (1159), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 06:16:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1287 transitions. [2024-11-20 06:16:30,116 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1287 transitions. Word has length 144 [2024-11-20 06:16:30,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:16:30,119 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1287 transitions. [2024-11-20 06:16:30,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 06:16:30,120 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1287 transitions. [2024-11-20 06:16:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 06:16:30,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:16:30,121 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:16:30,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 06:16:30,122 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:16:30,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:16:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1304528217, now seen corresponding path program 1 times [2024-11-20 06:16:30,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:16:30,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405760171] [2024-11-20 06:16:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:16:30,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:16:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat